Electric locomotive.



1. LE C. DAVIS. DECD..

M. s. DAVIS, ADMINISTRATRIX. ELECTRIC LOCOMOTIVE.

APPLICATION FILED JUNE 29,1914- Patented Oct. 2, 1917.

INVENTOR III WITNESSES:

JosEPH LE. GONTE nnvrannonnsnn, LATE or rrrrsrunon, PENNSYLVANIA, By,

IVLYRA SHIELDS DAVIS,ADM;I1 T;IS'JTLRA'IRILC, or rrrrsnnncm rEN sYvANrn, nss oNoa TO wEST-INeHoUs Ernctrmoa n MANU AOTURINQ COMPANY, A,

CORPORATION- or PE sYLvANIA.

. ELECTRIC LOCOMOTIVE.

ToaZZ whom it may concern Beit known that J osnr rr LE GoN'rn DAVIS,deceased, late of- Pittsburgh, in the county pelledvehicles, and it hasspecial reference to electric locomotives such as are employed forhauling heavy trains upon electric railway systems and electrifiedrailroad 'sys tems.

The object of the inventionis to provide an electric locomotive having arunning gear upon which the driving motors are mounted in a simple andimproved manner, which permits of ready overhauling of the motorarmatures through openings in the side frames. i

According to the invention, openings are provided in the side frames ofthe locomotive running gear into which suitable de tachable bearinghousings are disposed for the purpose of supporting the motor armatures,said side frame openings being of sufficient dimensions to permit theendwise removal of'the armatures.

In the accompanying drawing, Figure 1 is a view, partially in sectionand partially in side elevation, of a locomotive constructed'inaccordance with the invention; Fig. 2 is a view, partially in sectionand partially in plan, of the running gear shown in Fig. 1; and Fig.3'is a view, in side elevation, of one of the driving units shown inFigs/1 and 2, the side frame of the locomotive being removed for thesake of clearness.

Referring to the drawing, the structure shown comprises a locomotivebody 1' and a running gear'2 comprising a plurality of side frames?) and4, driving axles 5 and 6, driving wheels 7- and 8, a plurality ofelectric driving units 9 'and'lO and mechanical driving connections 11and 12 for trans- Specification of Letters Patent.

Patented Oct; 2, 1917.

Application filed June 29, 1914. Serial No. 847,814.,

mitting the driving effort of the driving units 9 and 10 to thewheels 7and 8.

The side frames 3 and 4 of the running gear are mechanically associatedby a plurality of cross-ties 14: which may'also serve to support thedriving units 9 and 10. The side frames 3 and 1 are provided'with a plucrality'of openings 15 which are corresp'ondingly disposed and adapted toreceive a plurality of detachable bearing housings 16. Moreover, theside frames 3 and 1 are pro vided with pedestal openings 17 and 18 intowhich countershafts 19 and 20 are disposed and supported in bearingblocks 21 of any well-known construction.

Each of the countershafts 19 and 20 is provided, at one end, with a gearwheel 22 which is adapted to transmit the effort of the driving units 9and 10 tothe driving wheels 7 and 8 through cranks 23 and 2e and siderods 25.

Each of the driving units 9 and" 10 embodies a plurality of rotatablemotor armatures 26 which are symmetrically disposed about thecountershaft 19 or 20 and are -as signed to the Westinghouse Electricand Manufacturing Company.

' So far as the present invention is concerned, the specific structureof the driving units 9 and 10 is innnaterial and it is therefore notattempted to further describe the peculiarities thereof. It should benoted, however, that the configuration of the field magnetstructure 27is such that it is impossible to remove the motor armatures 26 except ina lateral direction.

The several armatures 26 are carried upon shafts 28 in the usual manner,and one end of each of the shafts is provided with a pinion 29 which isadaptedto in'esh'with the gear 22, whereby all of the motor armatures 26transmit their driving effort to the countershaft 19 or the countershaft20. The field magnet structure 27 may be supported intermediate the sideframes 3 and 4 in any suitable manner, although it is proposed toutilize the cross-ties 1 1 for that purpose.

The several bearing housings 16, which are adapted to be seated in theside frame openings 15 and to be attached'to the side frames 3 and 4: bybolts 30, or other adequate means, are adapted to receive the ends ofthe armature shafts 28 and to provide bearings "therefon It is ofparticular importance that the openings 15 in the side frame 3, whichare opposite to the pinions 29 and gears 22, be of dimensions somewhatin excess of the diameter of the motor armatures26, although itisunnecessary that the correspondingly located openings 15 in the otherside frame't be of the same relative proportions. I

By this relationship and arrangement of parts, it is rendered convenientto overhaul the motor armatures 26 through the side frame openings 15 onthe side opposite the gearing, by removing the associated pinion 29 anddetaching the bearing housing 16 which cotiperates with the side frame3. The removal of the motor armature 26 through the side frame 3 isnecessitated by reason of the gear 22 on the opposite side which wouldinterfere with the over-hauling in the other direction.

In its broadest aspect, the invention is not restricted to theparticular type of driving unit shown and described, and, in fact, isnot limited to a multi-armature structure, but may be embodied in adriving unit havingla single armature which is carried by bearinghousings in the side frames, in the manner set forth. I

It, is to, be understood, therefore, that the appended claims areintended to cover all modifications of the invention which do not departfrom the spiritand scope thereof.

It is claimed as the invention:

,1.' In a vehicle having driving Wheels, the

combination with a plurality of side frames, a motor mounted betweensa1d frames, and a driving mechanism associated with said motor anddisposed outside of said side frames, of means for supporting said motorin said side-frames, permitting the removal of one of its membersthrough the side frame and maintaining the position of the drivingwheels relative to said side frames.

2. In a vehicle having axles and driving wheels, the combination with aplurality of side frames having correspondingly 'disposed openingstherein, said openings being disposed a greater: distance from eachdriving axle than the; radius of the driving wheels, and a plurality ofbearing members disposed in said openings and detachably secured to saidside frames, of a rotatable motor member supported by said bearingmembers and adapted to-be removed through one'of theside frame openings.

3. In a vehicle having axles anddriving wheels, the combination with aplurality of side frames, one of which is provided with an openingtherein, said opening being disposed a greater. distance from each axlethan an opening therein, said opening being disposed a greater distancefrom each axle than the radius of the driving wheels, and a motorarmature disposed between said side frames and adapted to be removedthrough said frame-opening, of bearing means asso- 'ciated with saidside frames for supporting said motor armature, one of said bearingmeans being disposed within said frame opening.

5. In a vehiclehaving' axles and driving wheels, the combination with aplurality of side frames, at least one of which-is provided with anopening thereln, of a detachable member dlsposed withln-sald opening andsecured to said side frame, and an armature located between said sideframes and supported by said detachable member, said armature beingadapted to be removed through said opening when the supporting member isdetached, while maintaining the position of the driving wheels relativeto the side frames unchanged.

6. In a vehicle, the combination with. a plurality of side frames,transverse cross-ties therefor, and a magnetizable motor member rigidlysupportedupon said cross-ties, of a motor armature cotiperativelyrelated to said magnetizable member, and a plurality of bearing housingsdisposed in openings in said side frames and detaehablysecured to saidside frames for supporting said armature, said armature beingremovablethrough said frame openings. v v

7. In a vehicle having axles and driving wheels, the combination with aplurality of,

side frames having an opening therein, and a motor frame disposedbetween said. side frames, of a motor armature disposed Within saidmotor frame and capable of removal through the 'endthereof, and meansassociated with said side frames for supporting said armature andpermitting its removal through said opening while maintaining theposition of the driving wheels relative to the sideframes.

8. In a vehicle, the combination with side frames, a plurality of motorarmatures disposed-between said side frames and a counter-shaftintermediate said armatures and having a mechanical connection with oneend thereof, of bearing members associated with the side frame oppositesaid mechanical connection for supporting said armatures, said lastnamed side frame having openings of larger dimensions than saidarmatures in which said bearing members are disposed.

9. In a vehicle, the combination with side frames, a plurality of motorarmatures dis; posed between said side frames, and a counter-shaftintermediate said armatures and having a mechanical connection with oneend thereof, of means associated with the side frame opposite saidmechanical connection for supporting said armatures andpermitting theremoval thereof through said side frame.

10. In a vehicle having axles and driving wheels, the combination withside frames and a driving motor having an armature removable through anopening in one of said side frames, said opening being disposed agreater distance from each axle than the radius of the driving wheels,of a driving connection between said armature and one of said axleslocated outside the opposite side frame to that through which saidarmature is removable.

11. In a vehicle having axles and driving wheels, the combination with aplurality of side frames, one of which is provided With an openingdisposed at a greater distance from each axle than the radius of thedriving wheels, of a driving motor comprising a stationary magnetizableframe secured to the side frames and a rotatable armature independentlycarried by said side frames and mechanically connected to the drivingaxle upon one side of the vehicle, said armature being longitudinallyremovable through the opening in the side frame opposite saidmechanical. connection.

12. In a vehicle having axles and driving wheels, the combination with aplurality of side frames, having relatively large openings therein whichare disposed at a greater distance from each axle than the radius of thedriving wheels, a magnetizable frame structure supported between saidside frames, a plurality of removable bearing housings p0- sitioned inthe openings of said side frames having flanges adapted to be seatedagainst the outside surface of said side-frames and a plurality of boltscooperating With said flanges and side frames for rigidly securing saidhousings in position, of a rotatable armature disposed between said sideframes and independently mounted in said bearing housings, said armaturebeing longitudiA nally removable through the side-frame openings.

In testimony whereof, I have hereunto subscribed my name this 8th day ofJune, 1914.

v MYRA SHIELDS DAVIS, Adm-inistratr'im 0f the estate of Joseph Le OomfeDcwz's, deceased.

Witnesses ALBERT G. WALTER, WM. COLTERYALUN, Jr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

